Apparatus and method for correcting image distortion of a camera for vehicle
First Claim
1. An apparatus for correcting image distortion of a camera in a vehicle, comprising:
- a camera mounted in the vehicle;
a controller configured to;
extract camera characteristic parameters of the camera based on a correction coefficient for correcting image distortion;
calculate a tilt angle of a virtual camera corresponding to the camera in one or more photographing regions using the camera characteristic parameters;
calculate a yaw angle of the virtual camera in each of the one or more photographing regions;
create a correction model by applying the calculated tilt angle and calculated the yaw angle of the virtual camera in each of the one or more photographing regions;
view-transform a photographed image photographed by the camera by adjusting the tilt angle and the yaw angle of the virtual camera based on the created correction model to secure a view region of the photographed image and create a corrected image depending on the view transformation; and
display the corrected image on a display disposed within the vehicle.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus for correcting image distortion of a camera in a vehicle includes: a camera mounted in the vehicle; a camera characteristic extractor configured to extract camera characteristic parameters of the camera based on a preset mathematical model; a tilt angle calculator configured to calculate tilt angles of a virtual camera corresponding to the camera in each photographing region using the camera characteristic parameters; a yaw angle calculator configured to calculate yaw angles of the virtual camera in each photographing region; an image corrector configured to view-transform a photographed image photographed by the camera by adjusting angles of the virtual camera based on a correction model in order to secure a view region of the photographed image and create a corrected image depending on the view-transform; and a display configured to display the corrected image output from the image corrector.
37 Citations
16 Claims
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1. An apparatus for correcting image distortion of a camera in a vehicle, comprising:
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a camera mounted in the vehicle; a controller configured to; extract camera characteristic parameters of the camera based on a correction coefficient for correcting image distortion; calculate a tilt angle of a virtual camera corresponding to the camera in one or more photographing regions using the camera characteristic parameters; calculate a yaw angle of the virtual camera in each of the one or more photographing regions; create a correction model by applying the calculated tilt angle and calculated the yaw angle of the virtual camera in each of the one or more photographing regions; view-transform a photographed image photographed by the camera by adjusting the tilt angle and the yaw angle of the virtual camera based on the created correction model to secure a view region of the photographed image and create a corrected image depending on the view transformation; and display the corrected image on a display disposed within the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for correcting image distortion of a camera in a vehicle, comprising:
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extracting, by a controller, camera characteristic parameters of the camera which is mounted in the vehicle based on a correction coefficient for correcting image distortion; calculating, by the controller, a tilt angle and a yaw angle of a virtual camera corresponding to the camera in one or more photographing regions using the camera characteristic parameters; creating, by the controller, a correction model by applying the calculated tilt angle and the calculated yaw angle in each of the one or more photographing regions; adjusting, by the controller, an angle of the virtual camera based on the created correction model in order to secure a view region of a photographed image photographed by the camera; view-transforming, by the controller, the photographed image by adjusting the tilt angle and the yaw angle of the virtual camera based on the created correction model to secure a view region of the photographed image and create a corrected image depending on the view-transformation; and displaying, by the controller, the corrected image on a display disposed within the vehicle. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A non-transitory computer readable medium containing program instructions executed by a controller for correcting image distortion of a camera in a vehicle, the computer readable medium comprising:
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program instructions that extract camera characteristic parameters of the camera which is mounted in the vehicle based on a correction coefficient for correcting image distortion; program instructions that calculate a tilt angle and a yaw angle of a virtual camera corresponding to the camera in one or more photographing regions using the camera characteristic parameters; program instructions that create a correction model by applying the calculated tilt angle and the calculated yaw angle in each of the one or more photographing regions; program instructions that adjust an angle of the virtual camera based on the created correction model in order to secure a view region of a photographed image photographed by the camera; program instructions that view-transform the photographed image by adjusting the tilt angle and the yaw angle of the virtual camera based on the created correction model to secure a view region of the photographed image and create a corrected image depending on the view-transformation; and program instructions that display the corrected image on a display disposed within the vehicle.
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Specification